Method of forming paving-brick.



J. G. ADDERSON.

METHOD OF FORMING PAVING BRICK.

APPLICATION mu) 050.22. 1914.

WI T/VESSES:

Patented. Oct. 12, 1915.

Mmroa James G. Adele/"5011 m0 ATTORNEY COLUMBIA PLANOGRAPH :0. WASHINGTON. D. C.

cairn s JAMES GEORGE ADDERSSN, OF BENTON, WASHINGTON, ASSIGNOR 'IO DENNY-BENTON CLAY & COAL 00., OF SEATTLE, WASHINGTON, A CORPORATION OF WA$HINGTON.

METHOD OF FORMING PAVING-BRICK.

Specification of Letters Patent.

Patented Oct. is, rare.

Application filed December 22, 1914. I Serial No. 878,520.

To (6 w item it may concern:

Be it known that I, JAMES GEORGE Annma- SON, a citizen of the United States, residing at Benton, in the county of King and State of i Vashington, have invented certain new and useful Improvements in Methods of Forming Paving-Brick, of which the following 1s a specification.

This invention relates to improved methods of making paving brick and covers the process illustrated and described in my copending application, Serial No. Stet-16, filed June 13, 1914. V T

The objects of the invention are to provide a simple, cheap and efiicient means for raising lugs or projections upon the out surfaces of side-cut bricks, and to also provide a simple in lane for beveling or rounding the longitudinal edges of such bricks.

In making paving bricks, it isdesirable to form lugs or projections upon one or both of their side faces to space the bricks apart, when laid, sufficiently to permit the cement or other binder to flow freely between adjacent bricks and fill the interstices therebetween. It is also desirable to bevel the upper longitudinal edges of the bricks toprevent the edges from chipping, and to provide a good foothold for horses and traction for vehicles.

The formation of side lugs and beveled edges upon end-cut paving brick is relatively common, and is usually accomplished in the die, or in immediate connection therewith. My invention contemplates the formation of such lugs and bevelededges upon the sides of side-cut brick aftertheseha-ve been cut and separated, by'the provision of suitable tools for handling and molding the brick, as will be hereinafter described.

In the accompanying drawings, I have shown means for carrying out my process in a preferred form.

In the drawings, Figure 1 represents a top plan view of' apparatus adapted to carry out the process, and Fig. 2, represents the same in side elevation, some parts being broken away for better illustration of the parts.

An auger die machine 1, which may be driven by any suitable source of power, not

shown, delivers a column of plastic clay, IC, through die 2. This column. of clay passes onto a polished cutting table 3, where it is cut transversely by any suitable wire-cutting machine a into blocks B of approximately the width of a finished brick. The column of out. blocks 13 is forced forward by the pressure of the clay column C and passes onto a polished platformb which is placed between the cutting table 3 and an endless belt 6 and is formed with an angular forward edge that permits one end of an advancing brick B, to engage with the belt 6 before the other end of such brick leaves the, platform 5. The belt 6 is driven by any suitable means, not shown, at a rate of speed somewhat greater than the rate of movement of. the column C, which serves to separate the blocks as they are advanced upon the apron 6. The blocks are then turned, the object of which is to send bricks forward end-to end instead of side-by-side. To accomplish this I provide an idle-turning roller 9 or other obstruction to the progress of one-end of the blocks, which engages an end of the block and causes it to'make substantially a quarter-turn. A horizontal idle turning roller 10, provided with an enlargement 11, may be positioned near roller 9, and beneath the apron 6, so that enlargement .11 serves as the pivot upon which the block turns.

After the blocks have been turned, as described above, they are carried along by belt 6 between guides 13, which force them into exact alinement, and pass thence onto a polished plate 14. Here they accumulate and the spaces between the blocks are closed until there is sufiicient tractive or adhesive force between belt 6 andthe bricks thereon to force the first brick forward.

To cut the bevels, orto round off thecorners, as'may be desired, I provide two knives 15, one at each side of the block. These may be adjustable in position, and are adapted to, cut off the longitudinal upper edges of the blocks. p

In order to raise the lugs on the cut sur faces of the brick, I providea pair of ridgeforming tools 16, adjustably mounted one above the other on a post 17. These ridgeforming'tools project slightly into the path] of the moving column of blocks and are each provided with a pair of spaced thin-edged converging pallets of a form clearly shown and described in my co-pending application, Serial No. 844,916, and are adapted to cut slight grooves in the face of the brick,and

to mold th s material into ridges. The

l in manufacturing'brick.

block, with the ridges raised on its side face, then passes on to a roller 18, which is provided with longitudinal grooves 19. This roller 18 is vertically mounted in an arm/21 which is pivoted at 22 to the frame-work 23, and is held against the side of the column of blocks by means of a spring 24.; This roller, in passing over the surface of the block, flattens the ridges which were raised by the ridge-forming tools 16 to the original plane of the block, except where the longitudinal grooves 19 pass over the block. These grooves 19 are of such depth that the ridge on the block is not flattened, but remains to form the spacing lug. I

The operations or raising a ridge on the blocs, flattening the same to form spacing lrgs, and beveling the corners, are all performed while the block is passing along plate 14:. After these operations are com pleted, the block is delivered to an oif-bearing belt 25, which is moving at a faster rate or" speed than the column of blocks. The blocks are separated by this means, and carried off to be piled and dried, as is usual It is evident that the order of carrying out the molding and beveling operations described above is not important. The blocks may be first beveled and then molded, or the ridge may be first raised, second, the corners beveled, and then the ridges. flattened and the lugs formed, as shown in the drawings, or any other suitable order may be followed. The process has been described above as raisinglugs on one side only, but these maybe formed on both sides if de sired, by duplication of the ridge-forming tools 16 and roller, 18. 7 Similarly, the bevel may be cut on one side only, if desired. It may be found necessary to turn rollers 9, 10 and 18, or any one of them, by power to deliver the bricks properly, but this is within the scope of my invention.

By the employment of this cut paving bricks mayv be cheaply formed without the pressing them.

Having described my invention, what 1 claim, is

method, sidenecessity for V 1. The herein described method'ot' forming pavlng-brick, consisting in cutting a moving body of clay into side-cut brick blocks, turning said blocks into endwise relation, advancing said blocks, and molding the surface of said column of blocks as it is progressively advanced.

2. The herein described method of forming paving-brick, consisting in cutting a moving body of clay into side-cut brick Copies of this patent may be obtained for quickly and blocks, separating said blocks in spaced relation, turning said blocks into endwise relation, advancing said blocks in an endwise column, and molding the surface of said column of blocks as it is progressively advanced. v

The herein described method of forming paring brick, consisting in cutting a moving body of clay into side-cut brick blocks, turning said blocks into endwise relation, advancing said blocks in said endwise relation, and molding the surface of said blocks as they are advanced,

at. The herein described method of forming paving brick, consisting in cutting a moving body of clay into side-cut brick blocks, separatin said blocks in spaced relation, turning said blocks into endwise relation, advancing said blocks in said endwise relation, and molding the surface of said blocks as they are advanced. r

The herein described method of forming paving brick, consisting in cutting a moving body of clay into side-cut brick blocks, separating said blocks inspaced re lation, turning said blocks into endwise relation, advancing said blocks in an endwise column, raising a ridge upon the side surface of said column as it is advanced, and depressing or removing a portionv of said ridges to provide spaced lugs projecting from the side-cut surface of said blocks.

6. The herein described methodof forming paving brick, consisting in cutting a moving body of clay intoside-cut brick blocks, separating saidblocks in spaced relation, turning'said blocks into endwise relation, advancing said blocks in an endwise column, and cutting the upper longitudinal edges of said blocks as the column is advanced 7. The herein described method of formin paving brick, consisting in cutting a moving body of clay into side-cut brick blocks, separating said blocks in spaced relation, turning said blocks into endwise relation, advancing said blocks inan endwise column, cutting the upper longitudinal edges of said blocks as the column is advanced, raising a ridge upon the side surface of said column as it is advanced, and depressing or removinga portion of said ridges to provide spaced lugs projecting from the side-cut surface of said blocks.

Signed at Seattle, Wash, this 25th day of November, 1914.

JAMES GEORGE ADDERSON.

WVitnesses:

ERNEST A. L. FRANK, F. W- QHILLES'IAD.

five cents each, by addressing the Commissioner of Patents.

Washington, 10.0. a 

